This sentence means that when you are educated everything becomes easy. wherever you go, whatever you do the "golden door of freedom will open". Yes indeed everything will seem to you easier to do and your dreams will be fulfilled.

Education gives you FREEDOM!
Education gives us all the knowledge.It's a key through which we can rule the world.If we are educated, then where ever we go , or whatever we do, we can do it with much confidence and exactness. If we aren't educated, we may be hesitant to do or we may not able to do things.An educated man enjoys freedom.He can prove his talent through various fields.Thus education is the key which paves us through the doors of freedom. 

This is what I consider.